- Created state normalization utility (stateNormalization.ts) with functions:
* normalize/denormalize for converting arrays to normalized state
* addToNormalized, updateInNormalized, removeFromNormalized
* Helper functions for working with normalized state
- Applied normalization to LibraryStore (items and favorites)
- Updated storeSelectors to convert normalized state to arrays
- Updated DashboardPage components to use new selectors
- Updated tests to work with normalized state structure
- Improved performance with O(1) lookups instead of O(n) array searches
- Created dedicated Search page with unified search interface
- Added search functionality for tracks, playlists, and users
- Implemented tabs for filtering results by type (All/Tracks/Playlists/Users)
- Added search query debouncing for performance
- Added URL query parameter synchronization (q, type)
- Added pagination for each result type
- Added empty states for no query and no results
- Added loading states for all search operations
- Added error handling for search failures
- Integrated with existing search APIs (tracks, playlists, users)
- Added search service for user search API
- Added route /search to router
- Added lazy loading for SearchPage component
- Added result previews in All tab (6 items per type)
- Added View All buttons to navigate to specific tabs
- Created dashboardService.ts to fetch real stats and activity from API
- Created useDashboard hook for managing dashboard data
- Updated DashboardPage to use real data instead of hardcoded values
- Added loading states and skeletons for better UX
- Made quick actions functional with navigation
- Added activity timeline with real timestamps
- Formatted numbers with K/M suffixes for readability
- Added relative time formatting using date-fns
- Unified token storage to use TokenStorage service
- Removed deprecated token-manager.ts
- Removed fallback storage logic in API client
- Updated tests and feature components to use TokenStorage
Resolves: INT-000002
Severity: P0
